The following data reflects standard ratings for the 2SC1124. Maximum Rating Collector-Base Voltage cap V sub cap C cap B cap O end-sub Collector-Emitter Voltage cap V sub cap C cap E cap O end-sub Emitter-Base Voltage cap V sub cap E cap B cap O end-sub Collector Current (Continuous) cap I sub cap C Collector Power Dissipation cap P sub cap C in some listings) Transition Frequency f sub cap T DC Current Gain (Min) h sub cap F cap E end-sub Physical Characteristics and Pinout Package Type : Typically found in Pin Configuration
The 160V breakdown threshold makes the C1124 perfectly adapted for driving capacitive loads across wide voltage swings. When deploying the device in a video amplifier matrix:
This is the most common reason for failure when replacing a 2SC1124. The original transistor uses an (Emitter-Base-Collector) pinout when viewed from the front with the legs pointing down. However, almost all modern replacements, including the KSC2690A and TTC004B, use an ECB pinout. The base and collector pins are swapped. c1124 transistor datasheet better
The MJE340 has half the current capability. Only use this if your circuit runs below 500mA. For high-current circuits, this is not better.
C1815 Transistor Datasheet, Pinout, Equivalent, Voltage, Circuit and Uses The following data reflects standard ratings for the 2SC1124
If you are looking for a "better" transistor, you likely mean a part with higher voltage handling, higher current capacity, or lower noise.
Yes, if it tests good.
Before hunting for a "better" datasheet, we must understand what we are dealing with. The C1124 is typically an . It was widely used in low-frequency power amplifier stages and voltage regulator circuits in consumer electronics during the late 70s and early 80s.
You might need a better alternative to the C1124 if your project demands: The MJE340 has half the current capability
To truly master this component, we need to look beyond the part number. We need to become detectives, using the datasheet as our guide to find the perfect modern replacement, understand its role in a circuit, and install it correctly. This article is your guide to achieving exactly that, providing you with all the tools and knowledge you need to be better at working with the C1124 transistor, whether you're designing a new circuit or resurrecting a piece of audio history.